A dash cam video of a toddler falling from the back of a moving minivan has gone viral. The video posted on Twitter shows the 2-year-old boy falling onto a busy highway in China's Jiangsu province. The child, quickly comes to his feet and runs after the minivan. It becomes obvious the driver hasn't noticed the boy is missing from the vehicle.

The people in the car whose dashcam caught the toddler's fall were able to get the 2-year-old to safety. Another driver chased after the grandfather, Yang Defu. He was finally able to get Yang's attention at a red light.

The grandfather told state-owned CCTV that his van's tailgate lock was damaged days earlier in a rear-end collision. His grandson was initially sitting in a passenger seat, and had apparently crawled to the back of the minivan, accidentally hitting the broken lock as the vehicle accelerated from an intersection, according to CNN.

The dash cam video has prompted much online discussion about using child car seats.
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